Global Patent Index - EP 2341213 A1

EP 2341213 A1 20110706 - Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer

Title (en)

Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer

Title (de)

Verfahren und Vorrichtungen zur Analyse und Steuerung der Ausbreitung von durch Wasserschlag erzeugten Wellen in einem Bohrloch

Title (fr)

Procédés et dispositifs pour analyser et contrôler la propagation d'ondes générées par un coup de bélier dans un trou de forage

Publication

EP 2341213 A1 20110706 (EN)

Application

EP 11159286 A 20060525

Priority

  • EP 06760379 A 20060525
  • US 68463205 P 20050525

Abstract (en)

A method of simulating water-hammer waves in a borehole is used to estimate formation parameters such as porosity and permeability, and to design completion strings. The simulation method uses a model that has a plurality of layers, at least one of the layers includes radial layering.

IPC 8 full level

E21B 47/00 (2012.01)

CPC (source: EP US)

E21B 43/00 (2013.01 - EP US); E21B 49/008 (2013.01 - EP US); G01N 15/0826 (2013.01 - EP US); G01N 15/088 (2013.01 - EP US); G01V 1/005 (2013.01 - EP US); G01V 1/44 (2013.01 - EP US); G01V 1/52 (2013.01 - EP US)

Citation (applicant)

US 5220504 A 19930615 - HOLZHAUSEN GARY R [US], et al

Citation (search report)

  • [A] US 5220504 A 19930615 - HOLZHAUSEN GARY R [US], et al
  • [T] WANG ET AL.: "Water hammer effects well performance and longevity, SPE 112282", INT. SYMPOSIUM AND EXHIBITION ON FORMATION DAMAGE CONTROL, LAFAYETTE, LOUISIANA, USA, 13 February 2008 (2008-02-13) - 15 February 2008 (2008-02-15), pages 1 - 9, XP002633290

Designated contracting state (EPC)

DE DK FR GB IT NL

DOCDB simple family (publication)

WO 2006127892 A2 20061130; WO 2006127892 A3 20090416; CA 2609350 A1 20061130; CA 2609350 C 20110913; CN 101501298 A 20090805; CN 101501298 B 20130925; CN 102587869 A 20120718; EP 1883801 A2 20080206; EP 1883801 A4 20110223; EP 2341213 A1 20110706; MX 2007014800 A 20080214; NO 20076611 L 20080212; US 2006293857 A1 20061228; US 7313481 B2 20071225

DOCDB simple family (application)

US 2006020225 W 20060525; CA 2609350 A 20060525; CN 200680018106 A 20060525; CN 201210074790 A 20060525; EP 06760379 A 20060525; EP 11159286 A 20060525; MX 2007014800 A 20060525; NO 20076611 A 20071221; US 44088506 A 20060525